Utrax 4 Pcs Elastic Bed Sheet Straps Grippers Sheets Ironing Clip Buckles Holder These handy sheet fasteners are just what you need to keep your sheets neat and secure in place Lift mattress and fasten one clip to edge of sheet about 10-12 inches from corner of mattress Repeat above for all 4 corners Great for bed sheet, satin sheet, mattress covers, blankets, etc Easy to use